Harrow



HARROW Filed Jan .10, 1927 1 '1 o 2 Pavia MENTOR.

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g fly BY ATTORNEY.

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.thxtented den. 10, 1928.

idliti ALBERTUS B. NIXON, OF SAC CITY, IOWA.

HARROW.

Application filed January 10, 1927.

tllhis invention relates to hurrows ot that type including teeth carrying burs or bezuns cnpnhle ot' being rocked or shifted iroln uctive to inactive position, but more peri ticulzn-ly to the end tooth or teeth carried by certain of the teeth- #nrrying burs or beunis, and the invention has for its object o PTUVldC, in n manner as hereinu'tter set forth, on end or whet uni y be termed a his toot-h having its head disposed at right angles to its shout: and constructed in a runner to term :t supporting runner o skid.

disposed at right tangles to the harrowing position of the burrow when the teeth carryup; bars or beams are shiitted from active to inuctive position.

'llhe design and. purpose being to enable hurrow ot two or more sections to be easily Mil quickly cminected together tor the pun pose o't conveniently moving the herrow endwise through gates, across bridges or down it road or lune without disconnr-icting the sections from the druwber or loinlingthe some on any vehicle and without in'ipuiring the barrow in eny manner.

provide.

Further objects oi the invention are to in a manner as hereinotter set forth, on end or side hut-row tooth for the purpose referred to end which is simple in its construction und arrangement, strong, duiuble, thoroughly eflicient in its use, rcudily ins'etzilled, compact, providing it hitch, or rzuvher menus to iierntiit ot quickly ettuehiuo u. hitch with the burrow body and r-ltllltiliidll oi? hurrow which is to pernut the teeth curry tively ii'ier-ipei'isivc to .uiuiuitncture.

This in vcntion nnry be i'ised. upon any (:on so designed us burs or booms position to on lHEHiiVi! position so that the teeth can be phured in u horizontal position tor moving' to end :troni the hold.

ll ith the tijircgoing and other objects in view the invention consists of the novel.

onstruction. combination and arrangement of ports, as hereii'iafter more specifically decribed, and illustrnted in the accompanying druwings, wherein is shown an embodiment of the invention, but is to be understood hat changes, erintions and modifications cuii be resorted to which fell within the Serial No. 166,233.

strueted in accordance with this invention.

Figure 2 is an elevation of on end or side tooth constructed in accordance with this invention and in active position and tuther illustrated. as secured to its esseeietcd carrying; her or bezun.

Figure 2-5 is it view siniilur to Figure d illustrating; a tooth shitted from active position to provide a, su1iportin; runner or slitid tor the hurrow body.

Figure l is n section on line l;--l Figure 2.

liigui" 5 :t treginentury view illustrating one of the lint: connections between. it teetlrcurrying bur or beam and the rocking; ineuns theretor.

Referring to the drawings in detail the lltll'l'OW illustrated thereby is shown by vu oft e.-'u.n'1ple us includiz'ig live tcetlrcnri' 'inu bars or beuuis, but it to be uiulerstood thut the number can be iucreused or decreased it desired. The teeth-carrying bars or beuuis ore indicated at 1, 2, 3, 4t and 5, each oil. which is half round in cross section. The burs ure disposed in parallelism, but spaced from U each other. The bars are mounted in supports which are disposed in e transverse direction with respect to the direction in which the bars extend. its shown three supports are provided for the bars and said supports are indicated at 6, 7 and 8 end are arranged equidistant with respect to ouch other. l reterobly each support is in the form of :1. channel iron. .ltidCll support is 'lorined with u. lengthwise extei'iding row of spuced circular openings 9 for the pussuge oi? the burs and the openings 9 in one support are urruns ged in uliiuuncnt with. the openings 9 in the adjacent support. lllhe bar 1 eittci'ids from the outer supports (3, h, but one end of the bur l, which is jiiulicuti-d ut 1U projects-i :i greater distance troui the sup mrt 8 than that end of the bur 1, which is indicarted at 1]., projects from the support 6. The bar 2 extends i1. greuter distance from thesuppcut (S than it does from the support 8 and the end of the i031. 2 which projects from the support (3 indicated at 152. The bar projects all; one end it greater distance from the support 8 than it does from the bar 6 and that end of the l or 3 which projects from. the support El indicated st 125. The bar l; projects u greater distance from the support (5., than it does from the support 8 and the end of the hair l which projects from the support 6 is indicated at M. The ends oil the bar 5, which are indicated at 1.5 and till 16 project the same distance from the supports 6 and 8. Preferably the bar 4 is of greater length than any of the other barsso that the end 14 thereof will extend the same distance from the support 6 as the end 12 of the bar 2. The bars can be rocked within the supports and the purpose thereof will be presently referred to.

The bars 1 to 5 inclusive are connected together by a set of shifting members, three in number, which are indicated at 16, 17 and 18 and which slide over the bars. The shifting member. 16 is arranged in proximity to one side of the support 6. The shifting member 17 is positioned in proximity to one side of the support 7, and the shifting member 18 is positioned in proximity to one side of the support 8. The members extend above the supports and each member is con nected to the series of bars by a set of links 19, pivotally connected at their upper ends as at'20 to a shifting member and having their lower ends provided with collars 21, which are mounted on and secured to the bars. An actuating lever 22, is pivotally connected as at 23 to the shifting member 17 and also pivotally connected to the support 7. The lever 22 includes a pawl and lever mechanism which associates with a. rack 25, the latter being fixedly secured to the support7, which projects a substantial distance from the bar 1 for the purpose of supporting the rack 25. The actuating lever 22 is provided for shifting the bars from active to inactive position. The active position is such whereby the bars will support the teeth in harrowing position, and inactive position is such that the teeth will be shifted to a horizontal position for the purpose of clearing the soil or. roadway. The position of the bars and teeth when in active position is as illustrated in Figure 2 and when in inactive position is as illustrated in Figure 3. The shifting members 16, 17 and 18 provide for the synchronous rocking of the bars, due to the link connections between the shifting members and the bars.

Each bar 'is provided with a series of harrow teeth arranged in spaced relation. and indicated at 26 and each of said teeth is not provided with a head, but only constructed of a shank formed with a pointed end. Each shank is of polygonal cross section. lhe bar 1 at one end is provided with a headed tooth 27 which is arranged in the end 10 of the bar 1. The end 12 of the bar 2 is pro vided with a headed tooth 28. The ends 15 and16 of the bar 5 are provided with headed teeth 29, 30 respectively. As the construction of each of the headed teeth is alike, but one will be described as the description of one will apply to the other. The headed tooth is formed of a shank 31 of polygonal cross section and a circular slitted head 32, of skeleton form, and which is disposed at right angles with respect to the upper end of the shank 31 and the shank 31 is disposed centrally with respect to one side of the head. The shank 3.1 terminates at its upper end in the head 31! and the free end 33 of the head is spaced from the point of ioinder oi' the shank with wl at may he termed the inner end of the head. The spaced end 3 provides a clearance ill so that a hitch 235 can be connected to the head 32.

l hen the bars I to I). are shifted from active position, the heads assume the position shown in Figure. 3, and provide supporting runners or skids for the lmrrow. \Vhen the bars 1 to 5 are shifted from active position, all the teeth are then disposed in a horizontal position, but the teeth 20 do nol act as supporting runners or skids.

The supports (3 and 8 are provided with oval-shaped split links 36. employed for attaching a. coupling bar to a pair of harrows when it is desired to operate with a pair of harrows arranged in tandem position. The coupling bar would be provided with eyes for the reception of the links 36. Each of the bars 1 to 5, are provided with notches 37 forming seats for the shanks 31 and each of said bars is furthermore provided with openings 38 for the passage of eye bolts Elf) through which extend the shanks 31. The openings in the eye-bolts correspond in contour to the shape of the shanks 31. Clamping nuts 40 are mounted on the shanks of the. eye-bolts 39 and abut against the bars 1 lo The manner of connecting a tooth to a bar is illustrated in Figure 1.

It is thought the many advantages of a harrow, constructed in accordance with this invention, can be readily uinlerstood. and although the preferred embodiment oi the invention is as illustrated and described. yet it is to he understood that changes in the details of construction can be had which will fall within the scope of the invention as claimed.

What I claim is:

1. In a harrow. sets of teeth. shillahle carriers therefor for supporting the teeth in and for moving" them from harrowin; position certain of said teeth including heads providing supporting means for (he harrow extending at right angles to the harrowing position of the harrow when such teeth are moved from harrowing position. and further providing hitch coupling means for the harrow.

2. In a harrow a shiftahle ground working tool provided at its upper end with a supporting runner for the harrow extending at right angles to the ground working position of the harrow when the tool is arranged out of ground working position, said supporting runner consisting of a circular head of skeleton form disposed at right angles with respect to the remaining portion of the tool l U I) ii ..v1

and eonstineteei to provide for the entrance end, nttnehing of n hitch thereto.

3. in e hm'i'ow :1 combined ground work-- ing; linpien'ient and EUPPOltFiDg runner eon eietine; of e shank having one end pointed and ite other end tern'zimiting in e spiit eii'enhn' heed oi? skeleton form (deposed sit right angles with respect to the shank and he. one end joinedv With the Shank end its other end epeeed "from the point of joiniiei out the shank with the tiiet mentioned.

end of the head.

4t. it hai'iow tooth eon'iprising e shank tel'inimting; at one end 111 e spht skeieton heed disposed at right angles throughout with respect thereto.

5. in :1 narrow, teeth movable from, and to him-towing position a series of opposed eoinhh'ied ehittehie and supporting bars theretm', the teeth at the ends of the enter here of said series each provided with :1, split skeleton heed disposed at right angles with IQSPGChtTO the remaining portion thereof and providing runners for the iltllIOW when such teeth. are HIOVQti. fiil'Oll') harrowing position, and coupling means for an adj 21- eent hei'i'o ii eei-rimi by eeeh head.

(3. In 21 hot-row, e tooth movahie from and to heifirowing position and inelnchng n shank terminating; at one en (1 into e right angnhu'ly disposed heed pi'oviding when the tooth is moved h'ODIl harrowing position it runner for. the hon-ow diepoeed at right angles to the Working position of the hnl'irow, end coupling means carried by .Efliii hezni to]? on an tj 21 cent ham-0W.

in testimony whereof it eitii: my eignw tore heteto.

ALBEiEtTUEi 1'3. ltitltUN. 

